Short but sweet
-_-_-_-_ART_-_-_-_-
The art was minimalistic, but it definitely worked. It wasn't too original, I've seen the style in many games recently. The colors went very well together. In every level there was a perfect balance of every color, and in some levels a perfect balance of warm and cool colors. It certainly capture the eye. The symmetry of the animation and level design was a great touch, and the music and cursor helped as well. As these elements in my opinion really helped the game. 7/10.
-_-_-_-_GAMEPLAY_-_-_-_-
I was disappointed when it ended, but you know what that means? It was fun! I really enjoyed gameplay. I was quickly thinking up strategies as well as testing which would work, avoid the bad colors, and watching the clock at the same time. The multasking made it fun. I would say the biggest con was that it was far too short, I would have liked to see it doubled.
-_-_-_-_OTHER_-_-_-_-
How long was the gameplay itself? I could figure it out if I remembered how many levels there were. And congratulations on your first game. It's a pretty good one too. And it's impressive for your age (not that I should be saying crap like that, I'm a 12 year old programmer too).